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- Please,please help me Lanthanoid contraction is caused due to
- #All India Pre Medical Test
- #Engineering
- #Chemistry
- #d - and f - BLOCK ELEMENTS
- #Joint Entrance Examination Main
Lanthanoid contraction is caused due to
- Option 1)
the appreciable shielding on outer electrons by 4f electrons from the nuclear charge
- Option 2)
the appreciable shielding on outer electrons by 5d electrons from the nuclear charge
- Option 3)
the same effective nuclear charge from Ce to Lu
- Option 4)
the imperfect shielding on outer electrons by 4f electrons from the nuclear charge
Answers (1)
Option 1)
the appreciable shielding on outer electrons by 4f electrons from the nuclear charge
Option 2)
the appreciable shielding on outer electrons by 5d electrons from the nuclear charge
Option 3)
the same effective nuclear charge from Ce to Lu
Option 4)
the imperfect shielding on outer electrons by 4f electrons from the nuclear charge
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